Question

1. Which figure is a diameter of F?

2. Which figure is a radius of F?

3. Which figure is a chord of F?

4. Which arc measures 180°?

Answer 1

#1

• F is situated in between C and D

So the diameter is CD

#2

Radius is 1/2CD=FD or FC

• FE is also a radius

#3

• AB is a chord .

#4

• ARC (DCE) is of 180°

Answer 2

1. THE DIAMETER OF F = CD

2. RADIUS OF F = CF OR FD [ AS F IS THE MIDDLE POINT AND ANY POINT FROM THE CENTRE IS TERMED AS RADIUS

3. CHORD OF F = AB

4. HERE 180° IS CD AS IT FORMS A STRAIGHT LINE